Skip to main content
SachinAttri1-Visitor
1-Visitor
March 3, 2018
Solved

How to model a Transistor in MATHCad?

Hi All. I m trying to model a circuit which is basically a CE amplifier.

 

I m not sure how to start. Can anyone please help?

LucMeekesAnswer
23-Emerald V
March 3, 2018

How accurate do you want to model the transistor?

For what purpose do you want to model: Large signal or small signal (AC)?

 

Success!
Luc

View in thread

16 replies

-MFra-21-Topaz II
21-Topaz II
March 3, 2018

Hi,

sawtooth.jpg

Translate
LucMeekes23-Emerald VAnswer
23-Emerald V
March 3, 2018

How accurate do you want to model the transistor?

For what purpose do you want to model: Large signal or small signal (AC)?

 

Success!
Luc

Translate
SachinAttri1-VisitorAuthor
1-Visitor
March 4, 2018

As accurate as a Practical model. I want to perform worst case analysis as well using this model..

Translate
LucMeekes23-Emerald V
23-Emerald V
March 4, 2018

What do you think is a 'Practical' model?

In order to model you must have a circuit, know parameters of the components in the circuit. Do you have those?

What kind of worst-case scenario's do you want to investigate...component tolerances, environmental conditions, EMI situations?

But most importantly: why use Mathcad, and not an electronic circuit simulation application (e.g. LTspice)?

 

Success!
Luc

 

Translate
nas0k1-Visitor
1-Visitor
March 5, 2018

Maybe something like the attached? There're P4 so I hope you can open them.

 

Norm

Translate
    SachinAttri1-VisitorAuthor
    1-Visitor
    March 22, 2018

    so sorry. i could not open.

    Can you please help me with this

    Translate
    -MFra-21-Topaz II
    21-Topaz II
    March 23, 2018

    Please, you should specify to whom of the community you refer.

    Translate
    -MFra-21-Topaz II
    21-Topaz II
    March 19, 2018

    Hi,

    BJT0.jpgBJT1.jpgBJT2.jpgBJT3.jpgBJT4.jpgBJT5.jpgBJT6.jpg

    BJT7.jpgBJT8.jpg

    Translate
    Terms & ConditionsAccessibility statement